Given the following dataset D in the 2-d feature space: 12 10 9 (L 7 6 3 2CHD 1 2 34 56 7 8 9 10 11 12 Using Manhattan distance (L1 norm) as distance function, 1. compute the dendrogram using the single-link method. 2. compute the dendrogram using the group-average method. Given the following dataset D in the 2-d feature space: 12 10 9 (L 7 6 3 2CHD 1 2 34 56 7 8 9 10 11 12 Using Manhattan distance (L1 norm) as distance function, 1. compute the dendrogram using the single-link method. 2. compute the dendrogram using the group-average method